Hey people here it is , I have been training BJJ for about 6 months now and I just now started reading Eddie Bravo's Rubber Guard book. Ever since I first began training I would always ask what the gi grips would translate to no-gi and would focus and apply more of the techniques that would work for both gi/no-gi to my game since we don't really learn much no-gi stuff. Now that I've done my research on the Rubber Guard and Eddie's Lockdown from the half-guard I really want to take it to the mats at my school, but no one in my school I have seen use it even 1 time and same with the lockdown to whip up. They seem like very useful techniques that can be applied to MMA especially Rubber Guard because the % chance of you being hit are much much slimmer than with regular or open guard if you know what your doing, and thats exactly what I want to practice , So here's the question;

Do you think my instructor could take it as disrespect or get angry because I'm using techniques he didn't teach me ?
Should I stick to the things he is teaching me or try what I want ? opinions please

IMO ask to speak privately with your coach and have a theoretical discussion about it. Bear in mind that at 6 months there is alot you haven't been exposed to both in terms of theory and practice. I don't see your instructor getting pissed because you have a question.

On a side note since you asked for opinions, at 6 months, don't get too sidetracked from the basics with advanced techniques. You will end up screwing yourself with glaring holes in your game later on. By all means read and research the stuff, just don't focus on it to where you neglect the basics.

I didn't gety taught the rubber guard or the Lock down until I was about 8 or 9 months into my training. I knew about the rubber guard but never really used it. My hips are very flexible so I picked it up really fast.

I never even herd of the Lock Down until I herd a guy talking about it. And all it took was me asking him about it and he jumped into showing me it. It's pretty advanced stuff. The idea of it seems simple but putting it into practice is not. It puts a lot of pressure on the legs and it is countered pretty easily. I say just bring it up in conversation. I doubt he/they will have a problem showing it to you. No harm in wanting to learn them!!!

I was in a very similar position when I was coming up through jiu-jitsu, with an awesome instructor who had a great deal more experience, even than Eddie Bravo, so there was some concern about this. Of course, he's also a Royler Gracie student, and those who know the history will note that there's some bad blood there.

I think that it never hurts to ask your instructor. Generally, they take it as a sign of respect that students opted to ask beforehand.

That said, I really do think that the Rubber Guard is not something that is really fit for people who are getting started in jiu-jitsu. I do know that a lot of 10th Planet academies teach it right off of the bat, but the reality is that it requires a substantive level of experience with the basics of jiu-jitsu (being able to break down posture, controlling the hips using effective distancing, etc.) in order to be effective. Those kinds of fundamentals are not usually present after six months of training.

Personally, my advice as someone who love the rubber guard posture control stuff (though I don't like the lockdown at all) is to focus on controlling your opponents' first. The place that you're at in jiu-jitsu really is about learning to develop the high guard in a way that is consistent and good at establishing control behind the head. As you start to feel more and more comfortable with that level of control, then it is reasonable to start getting a little more aggressive and stepping up to mission control. Once you're there, you can work your way up.

If the head of your school or teachers get angry or offended by you using something they don't know, you need to get the **** out of that school. They are dinosaurs that aren't interested in advancing grappling and BJJ. They are stuck in their ways and you will not be learning things to make you the best grappler possible.

If you've never heard of or seen someone at your school mention something about "the old way" of doing a sweep or technique, they've probably been doing it for as long as the school has been around. And guess what, those kinds of guys get smashed in tournaments. Not to say there aren't some things that never change and probably won't ever change, there are plenty. I'm only saying that if the system that's being taught has been the same for the last 10 or 20 years, it's old and you are probably doing things guys at other school would laugh at because they've learned very successful counters and reactions.

Btw I may be a little biased. IronMan's reply is probably better and more worthwhile.